joining me about this, david unger, "christian science monitor." he wrote a story about the pros and cons of underground power lines. that's why we dragged him out on the show tonight. why doesn't every city have underground power? >> right. so it makes a lot of sense. think about it, take the wires, you put them underground. then they're protected from nature's elements but in reality turns out to be very expensive. it can cost anywhere from five to 10 tiles more to install underground cables than it can overhead lines. melissa: but how much does it cost every time the power goes out? i mean we're looking at trees hanging from power lines right now. >> exactly. melissa: how much does it cost to fix it? how much does it cost to rebuild the house burned down because of a downed power line? >> right. you know, it is a tradeoff, kind of a cost benefit analysis people have to take into consideration. the thing is there is lot of up-front costs when you're burying lines underground and people are a little hesitant to agree to a surcharge on their electr